US8543067B2 - Communication device and communication method employing the same - Google Patents

Communication device and communication method employing the same Download PDF

Info

Publication number
US8543067B2
US8543067B2 US12/694,411 US69441110A US8543067B2 US 8543067 B2 US8543067 B2 US 8543067B2 US 69441110 A US69441110 A US 69441110A US 8543067 B2 US8543067 B2 US 8543067B2
Authority
US
United States
Prior art keywords
signal
module
processor
switch module
broadcast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US12/694,411
Other languages
English (en)
Other versions
US20100330907A1 (en
Inventor
Jian-Yan Feng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Futaihong Precision Industry Co Ltd
Chi Mei Communication Systems Inc
Original Assignee
Shenzhen Futaihong Precision Industry Co Ltd
Chi Mei Communication Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Futaihong Precision Industry Co Ltd, Chi Mei Communication Systems Inc filed Critical Shenzhen Futaihong Precision Industry Co Ltd
Assigned to SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., CHI MEI COMMUNICATION SYSTEMS, INC. reassignment SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FENG, Jian-yan
Publication of US20100330907A1 publication Critical patent/US20100330907A1/en
Application granted granted Critical
Publication of US8543067B2 publication Critical patent/US8543067B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0067—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter

Definitions

  • the disclosure generally relates to communication devices and methods, particularly, to a communication system and a communication method for transmitting wireless signals, such as Bluetooth signals, Wi-Fi signals, etc.
  • Bluetooth technology as a short distance radio technology, is widely used in existing communication devices, such as mobile phones, personal digital assistants (PDAs), for transmitting information among the communication devices or between the communication devices and wireless networks.
  • PDAs personal digital assistants
  • the signals have poor quality and may be interrupted because of channel interference, transmission loss and low signal transmitting power.
  • the power of the portable electronic device may be used up more rapidly due to the high transmitting power of the Bluetooth signal. Therefore, it is difficult to meet the needs of long distance and long time communication for people.
  • FIG. 1 is a schematic view of a communication device, according to an exemplary embodiment.
  • FIG. 2 is a block diagram of a remote wireless device and the communication device shown in FIG. 1 .
  • FIG. 3 is a flow chart illustrating of a communication method, according to an exemplary embodiment.
  • FIG. 4 is a flow chart illustrating step 7 of the communication method shown in FIG. 3 .
  • FIGS. 1 and 2 show an exemplary embodiment of a communication device 100 for use with short distance wireless technology, such as Bluetooth, WiFi and so on, to transfer information.
  • the communication device 100 such as a mobile phone, a PDA, etc., can transmit and receive WiFi signal and Bluetooth signal.
  • the communication device 100 includes a housing 10 , a signal transceiver 20 , a first switch module 30 , a filtering module 40 , a signal processing module 50 , a processor 60 , a second switch module 70 , a power amplifying module 80 , and a setting module 90 .
  • the first switch module 30 , the filtering module 40 , the signal processing module 50 , the processor 60 , the second switch module 70 , and the power amplifying module 80 are electrically connected in series.
  • the first switch module 30 is further electrically connected to the signal transceiver 20 and the processor 60 .
  • the processor 60 is further electrically connected to the power amplifying module 80 and the setting module 90 .
  • the signal transceiver 20 , the first switch module 30 , the filtering module 40 , the signal processing module 50 , the processor 60 , the second switch module 70 , and the power amplifying module 80 are disposed inside the housing 10 .
  • the setting module 90 is disposed outside the housing 10 .
  • the signal transceiver 20 can be electrically connected with an existing transducer, such as an antenna.
  • the signal transceiver 20 is configured for transmitting and receiving predetermined types of wireless communication signals, such as the Bluetooth signal and the WiFi signal, with a remote wireless device 1 communicating at the same predetermined signals.
  • the first switch module 30 can be such as a single pole double throw (SPDT) analog switch.
  • the first switch module 30 is configured for selectively switching on corresponding receiving paths of the WiFi signal or the Bluetooth signal.
  • the filtering module 40 includes a first filtering unit 42 and a second filtering unit 44 .
  • the first filtering unit 42 can be integrated with a high pass filter (HPF) and configured for transferring high frequency signal among the WiFi signal and filtering out unnecessary low frequency signals.
  • the second filtering unit 44 can be integrated with a band pass filter (BPF), which is configured for transferring the Bluetooth signal while filtering out interference.
  • HPF high pass filter
  • BPF band pass filter
  • the first switch module 30 connects the signal transceiver 20 to the first filtering unit 42 and switches on the receiving path of the WiFi signal to transfer the WiFi signal.
  • the first switch module 30 switches on the receiving path of the Bluetooth signal and transfers the Bluetooth signal to the second filtering unit 44 through the first switch module 30 .
  • the signal processing module 50 includes a first amplifying unit 52 and a second amplifying unit 54 .
  • the first amplifying unit 52 and the second amplifying unit 54 can be integrated with low noise amplifiers (LNAs), which are configured for reducing signal interference and improving signal to noise ratio (SNR) of the received signal from the filtering module 40 .
  • LNAs low noise amplifiers
  • SNR signal to noise ratio
  • the first amplifying unit 52 and the second amplifying unit 54 are respectively configured for amplifying the WiFi signal and the Bluetooth signal.
  • the processor 60 can be integrated with the central processing unit (CPU), which is loaded with various control programs and a SNR reference value.
  • the processor 60 is configured for receiving and processing the received signal, and sending a broadcast signal to the second switch module 70 .
  • the processor 60 is also configured for controlling the first switch module 30 and adjusting the amplifying level of the power amplifying module 80 .
  • the second switch module 70 can also be an existing SPDT analog switch.
  • the second switch module 70 is configured for automatically and selectively switching on corresponding sending paths of the WiFi signal and the Bluetooth signal under the control of the processor 60 . For example, when the processor 60 sends the Bluetooth signal to the second switch module 70 , the second switch module 70 switches on the sending path of the Bluetooth signal to send the Bluetooth signal.
  • the power amplifying module 80 can be a class AB linear power amplifier, which has two operation modes: bypass operation mode and linear amplification mode.
  • bypass operation mode When the power amplifying module 80 is in the bypass operation mode, the communication device 100 transfers WiFi signal and Bluetooth signal with the remote wireless device 1 using an weak signal strength.
  • the power amplifying module 80 works in the linear amplifying mode, the communication device 100 transfer WiFi signal and Bluetooth signal with the remote wireless device 1 using a strong signal strength, but using more power.
  • the signal strength of the power amplifying module 80 determines the transmission distances of the WiFi signal and the Bluetooth signal, so that the signal strength can be divided into different power levels according to different transmission distance. For example, when the signal strength of the power amplifying module 80 is set to about 100 milliwatts, the transmission distance of the Bluetooth signal is about 100 meters. When the signal strength of the power amplifying module 80 is set to about 2.5 milliwatts, then the Bluetooth signal can be sent about 10 meters.
  • the processor 60 controls the power amplifying module 80 to automatically adjust the signal strength of the broadcast signal by comparing the SNR reference value with SNR value of the received signal from the signal processing module 50 , so that the power consumption of the communication device 100 is reduced. For example, when signal strength of the power amplifying module 80 is 100 milliwatts, and the SNR value of the wireless signal is larger than the SNR reference value, the power amplifying module 80 in a certain value (eg, 2 milliwatts, 3 milliwatts, etc.) automatically reduces the signal strength of the broadcast signal, until the SNR value of the wireless signal is about equal to or less than the SNR reference value.
  • a certain value eg, 2 milliwatts, 3 milliwatts, etc.
  • the setting module 90 can be a typical operating device, such as a control panel.
  • the setting module 90 is configured for choosing to receive the wireless signals such as WiFi signal or the Bluetooth signal to communicate with the remote wireless device 1 .
  • the setting module is further configured for choosing operation mode and power level of the power amplifying module 80 according to transmission distance.
  • the communication method uses the aforementioned communication device 100 to transmit short distance wireless signal, such as WiFi signal, Bluetooth signal.
  • the communication method may at least include the following steps.
  • step S 1 the communication signal, such as the WiFi signal, the Bluetooth signal, etc., as a received signal is chosen by the setting module 90 of the communication device 100 .
  • step S 2 the signal transceiver 20 receives the communication signal from the remote wireless device 1 .
  • step S 3 the first switch module 30 receives and switches on a corresponding receiving path of the received communication signal controlled by the processor 60 .
  • step S 4 the filtering module 40 filters out clutter and the signal processing module 50 amplifies the received communication signal.
  • step S 5 the processor 60 processes the received communication signal, such as modulation, demodulation, etc. and sends a broadcast signal.
  • step S 6 the second switch module 70 receives the broadcast signal and switches on the corresponding sending path of the broadcast signal under the control of the processor 60 .
  • step S 7 the power amplifying module 80 adjusts signal strength of the broadcast signal controlled by the processor 60 .
  • step S 8 the signal transceiver 20 sends the broadcast signal to establish communication link with the remote wireless device 1 .
  • the step S 7 may at least include the following sub-steps.
  • step S 71 the power amplifying module 80 works in the linear amplification mode and sends the broadcast signal in a maximum signal strength to remote wireless device 1 .
  • step S 72 the processor 60 determines whether the signal transceiver 20 receives a feedback signal from the remote wireless device 1 in a predetermined time (eg, 15 seconds, 20 seconds) or not. If the signal transceiver 20 receives the feedback signal in the predetermined time, the process goes to step S 73 , and if the signal transceiver 20 does not receive the feedback signal in the predetermined time, the process goes to step S 74 .
  • a predetermined time eg, 15 seconds, 20 seconds
  • step S 73 the processor 60 determines whether the SNR value of the received signal from the signal processing module 50 is larger than or equal to the SNR reference value or not. If the SNR value is larger than or equal to the SNR reference value, the process goes to step S 75 , and if the SNR value is less than the SNR reference value, the process goes to step S 74 .
  • step S 74 the communication device 100 may not receive the feedback signal from the remote wireless device 1 and fails to establish communication link with the remote wireless device 1 .
  • step S 75 the power amplifying module 80 automatically reduces the signal strength of the broadcast signal in a certain value (eg, 2 milliwatts, 3 milliwatts, etc.).
  • a certain value eg, 2 milliwatts, 3 milliwatts, etc.
  • step S 76 the processor 60 determines whether the SNR value of the received signal from the signal processing module 50 is larger than the SNR reference value or not. If the SNR value is larger than the SNR reference value, the process repeats step S 75 , and if the SNR value is equal to or less than the SNR reference value, the process goes to step S 77 .
  • step S 77 the processor 60 determines whether the signal strength of broadcast signal is lower than or equal to the signal strength of the broadcast signal when the power amplifying module 80 working in bypass mode. If so, the process goes to step S 78 , and if not, the process goes to step S 79 .
  • step S 78 the power amplifying module 80 works in the bypass mode to send the broadcast signal.
  • step S 79 the amplifying module 80 works in the linear amplification mode to transmit broadcast signal and save power.
  • both the WiFi signal and the Bluetooth signal share the power amplifying module 80 , so that the power amplifying module 80 can automatically adjust WiFi signal, Bluetooth signal and other wireless signal under the control of the processor 60 . Therefore, the communication device 100 not only extends transmission distance of the WiFi signal and the Bluetooth signal, but also reduces the power consumption, which meets the needs of the consumers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
US12/694,411 2009-06-30 2010-01-27 Communication device and communication method employing the same Active 2032-05-08 US8543067B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN200910303875.8 2009-06-30
CN200910303875.8A CN101938284B (zh) 2009-06-30 2009-06-30 通信装置及其通信方法
CN200910303875 2009-06-30

Publications (2)

Publication Number Publication Date
US20100330907A1 US20100330907A1 (en) 2010-12-30
US8543067B2 true US8543067B2 (en) 2013-09-24

Family

ID=43381263

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/694,411 Active 2032-05-08 US8543067B2 (en) 2009-06-30 2010-01-27 Communication device and communication method employing the same

Country Status (2)

Country Link
US (1) US8543067B2 (zh)
CN (1) CN101938284B (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8924585B2 (en) * 2011-06-03 2014-12-30 Apple Inc. Method for optimizing transport channels of devices
CN103902027A (zh) * 2012-12-26 2014-07-02 鸿富锦精密工业（深圳）有限公司 智能切换装置及其智能切换方法和***
CN103822612A (zh) * 2013-01-25 2014-05-28 江西飞尚科技有限公司 一种基于蓝牙传输的自动滑动测斜仪
CN103218904A (zh) * 2013-03-15 2013-07-24 成都中远信电子科技有限公司 基于WiFi的水文数据采集***
CN103415066B (zh) * 2013-08-12 2017-09-08 惠州Tcl移动通信有限公司 一种wifi发射功率的调整方法和终端
CN104717726A (zh) * 2013-12-17 2015-06-17 深圳富泰宏精密工业有限公司 无线通信装置
CN104812102A (zh) * 2014-01-25 2015-07-29 深圳富泰宏精密工业有限公司 无线通信装置
CN104097609A (zh) * 2014-06-18 2014-10-15 杨尧任 汽车报警***及利用蓝牙通讯***长距离报警的方法
CN104901725B (zh) * 2015-05-19 2018-09-21 西安海导信息技术有限公司 信号传输设备、***、信号传输***及信号传输方法
KR101813532B1 (ko) * 2015-11-06 2017-12-29 현대자동차주식회사 통신 모듈, 그를 가지는 차량 및 그 제어 방법
CN107852762B (zh) * 2016-06-30 2021-02-12 华为技术有限公司 管理蓝牙连接的方法、蓝牙主设备和装置
CN106328153B (zh) * 2016-08-24 2020-05-08 青岛歌尔声学科技有限公司 电子通信设备语音信号处理***、方法和电子通信设备
CN106973431B (zh) * 2017-02-14 2021-03-05 深圳市金立通信设备有限公司 一种发射功率调节方法及终端

Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5673259A (en) * 1995-05-17 1997-09-30 Qualcomm Incorporated Random access communications channel for data services
US5881368A (en) * 1996-06-06 1999-03-09 Qualcomm Incorporated Method and apparatus of power control in a CDMA dispatch system
US5884196A (en) * 1996-06-06 1999-03-16 Qualcomm Incorporated Method and apparatus of preserving power of a remote unit in a dispatch system
US5983099A (en) * 1996-06-11 1999-11-09 Qualcomm Incorporated Method/apparatus for an accelerated response to resource allocation requests in a CDMA push-to-talk system using a CDMA interconnect subsystem to route calls
CN1679250A (zh) 2002-08-30 2005-10-05 高通股份有限公司 半双工集成电路中的功放旁路
US20050286466A1 (en) * 2000-11-03 2005-12-29 Tagg James P System for providing mobile VoIP
CN101114848A (zh) 2006-07-24 2008-01-30 展讯通信（上海）有限公司 一种数字无中心***的发射功率等级控制方法
US7395056B2 (en) * 2000-05-31 2008-07-01 Wahoo Communications Corporation Time-shared full duplex protocol for use with a wireless communications system with artificial intelligence-based distributive call routing
US20080298275A1 (en) * 2004-06-04 2008-12-04 Elvino Silveira Medina De Sousa Autonomous Infrastructure Wireless Networks
US20090080490A1 (en) * 2007-09-21 2009-03-26 Siemens Energy & Automation, Inc. Systems, Devices, and/or Methods for Managing a Thermocouple Module
US20090092392A1 (en) * 2007-10-08 2009-04-09 Nec Laboratories America, Inc. Virtual i/q multiplexing in optical code division for secure local area ofdm
US7525289B2 (en) * 2003-03-17 2009-04-28 Ez4Media, Inc. System and method for automatically synchronizing and acquiring content for battery-powered devices
CN101438505A (zh) 2006-05-08 2009-05-20 日立金属株式会社 高频电路、高频部件及通信装置
CN101442330A (zh) 2008-12-09 2009-05-27 中兴通讯股份有限公司 一种射频电路及cdma移动终端
US7551921B2 (en) * 2000-05-31 2009-06-23 Wahoo Communications Corporation Wireless communications system with parallel computing artificial intelligence-based distributive call routing
US20090286565A1 (en) * 2005-11-07 2009-11-19 Hang Liu Apparatus and Method for Transmit Power Control Frequency Selection in Wireless Networks
US20090323257A1 (en) * 2006-09-18 2009-12-31 Shay Sarid Retrofitting Power Distribution Device and Uses Thereof
US20100002582A1 (en) * 2008-07-03 2010-01-07 Achim Luft Apparatus and methods for managing access and update requests in a wireless network
US20110084900A1 (en) * 2008-03-28 2011-04-14 Jacobsen Jeffrey J Handheld wireless display device having high-resolution display suitable for use as a mobile internet device
US20110202270A1 (en) * 2010-02-03 2011-08-18 Sharma Sridar G Delivery of advertisments over broadcasts to receivers with upstream connection and the associated compensation models
US20110213681A1 (en) * 2010-02-03 2011-09-01 Mohammad Shahid Delivering enhanced content to broadcast media receivers with internet connection and enhancing user experience
US20110231862A1 (en) * 2010-03-19 2011-09-22 At&T Mobility Ii Llc Agnostic execution cluster for an agnostic execution environment
US20110255514A1 (en) * 2009-06-30 2011-10-20 Huawei Technologies Co., Ltd. Method and apparatus of communication
US8106539B2 (en) * 2008-09-27 2012-01-31 Witricity Corporation Wireless energy transfer for refrigerator application
US20120087430A1 (en) * 2004-04-02 2012-04-12 Antonio Forenza Systems and methods to exploit areas of coherence in wireless systems
US20120123995A1 (en) * 2010-11-17 2012-05-17 General Electrical Company Power consumption compliance monitoring system and method
US20120190386A1 (en) * 2008-02-05 2012-07-26 Victor Thomas Anderson Wireless location establishing device
US20120242501A1 (en) * 2006-05-12 2012-09-27 Bao Tran Health monitoring appliance
US20120275319A1 (en) * 2011-04-26 2012-11-01 Bemini Hennadige Janath Peiris Concurrent transmission of wi-fi and bluetooth signals
US20120282875A1 (en) * 2011-05-02 2012-11-08 Sharp Laboratories Of America, Inc. Disabling transceivers while servicing emergency messages

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4487695B2 (ja) * 2004-09-07 2010-06-23 日本電気株式会社 マルチバンド無線機

Patent Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5673259A (en) * 1995-05-17 1997-09-30 Qualcomm Incorporated Random access communications channel for data services
US5881368A (en) * 1996-06-06 1999-03-09 Qualcomm Incorporated Method and apparatus of power control in a CDMA dispatch system
US5884196A (en) * 1996-06-06 1999-03-16 Qualcomm Incorporated Method and apparatus of preserving power of a remote unit in a dispatch system
US5983099A (en) * 1996-06-11 1999-11-09 Qualcomm Incorporated Method/apparatus for an accelerated response to resource allocation requests in a CDMA push-to-talk system using a CDMA interconnect subsystem to route calls
US7395056B2 (en) * 2000-05-31 2008-07-01 Wahoo Communications Corporation Time-shared full duplex protocol for use with a wireless communications system with artificial intelligence-based distributive call routing
US7551921B2 (en) * 2000-05-31 2009-06-23 Wahoo Communications Corporation Wireless communications system with parallel computing artificial intelligence-based distributive call routing
US20050286466A1 (en) * 2000-11-03 2005-12-29 Tagg James P System for providing mobile VoIP
CN1679250A (zh) 2002-08-30 2005-10-05 高通股份有限公司 半双工集成电路中的功放旁路
US7103321B2 (en) 2002-08-30 2006-09-05 Qualcomm Incorporated Power amplifier bypass in a half-duplex IC
US7525289B2 (en) * 2003-03-17 2009-04-28 Ez4Media, Inc. System and method for automatically synchronizing and acquiring content for battery-powered devices
US20120087430A1 (en) * 2004-04-02 2012-04-12 Antonio Forenza Systems and methods to exploit areas of coherence in wireless systems
US20080298275A1 (en) * 2004-06-04 2008-12-04 Elvino Silveira Medina De Sousa Autonomous Infrastructure Wireless Networks
US20090286565A1 (en) * 2005-11-07 2009-11-19 Hang Liu Apparatus and Method for Transmit Power Control Frequency Selection in Wireless Networks
CN101438505A (zh) 2006-05-08 2009-05-20 日立金属株式会社 高频电路、高频部件及通信装置
US20120242501A1 (en) * 2006-05-12 2012-09-27 Bao Tran Health monitoring appliance
CN101114848A (zh) 2006-07-24 2008-01-30 展讯通信（上海）有限公司 一种数字无中心***的发射功率等级控制方法
US20090323257A1 (en) * 2006-09-18 2009-12-31 Shay Sarid Retrofitting Power Distribution Device and Uses Thereof
US20090080490A1 (en) * 2007-09-21 2009-03-26 Siemens Energy & Automation, Inc. Systems, Devices, and/or Methods for Managing a Thermocouple Module
US20090092392A1 (en) * 2007-10-08 2009-04-09 Nec Laboratories America, Inc. Virtual i/q multiplexing in optical code division for secure local area ofdm
US20120190386A1 (en) * 2008-02-05 2012-07-26 Victor Thomas Anderson Wireless location establishing device
US20110084900A1 (en) * 2008-03-28 2011-04-14 Jacobsen Jeffrey J Handheld wireless display device having high-resolution display suitable for use as a mobile internet device
US20100002582A1 (en) * 2008-07-03 2010-01-07 Achim Luft Apparatus and methods for managing access and update requests in a wireless network
US8259659B2 (en) * 2008-07-03 2012-09-04 Apple Inc. Apparatus and methods for managing access and update requests in a wireless network
US8106539B2 (en) * 2008-09-27 2012-01-31 Witricity Corporation Wireless energy transfer for refrigerator application
CN101442330A (zh) 2008-12-09 2009-05-27 中兴通讯股份有限公司 一种射频电路及cdma移动终端
US20110255514A1 (en) * 2009-06-30 2011-10-20 Huawei Technologies Co., Ltd. Method and apparatus of communication
US20110202270A1 (en) * 2010-02-03 2011-08-18 Sharma Sridar G Delivery of advertisments over broadcasts to receivers with upstream connection and the associated compensation models
US20110213681A1 (en) * 2010-02-03 2011-09-01 Mohammad Shahid Delivering enhanced content to broadcast media receivers with internet connection and enhancing user experience
US20110231862A1 (en) * 2010-03-19 2011-09-22 At&T Mobility Ii Llc Agnostic execution cluster for an agnostic execution environment
US20120123995A1 (en) * 2010-11-17 2012-05-17 General Electrical Company Power consumption compliance monitoring system and method
US20120275319A1 (en) * 2011-04-26 2012-11-01 Bemini Hennadige Janath Peiris Concurrent transmission of wi-fi and bluetooth signals
US20120282875A1 (en) * 2011-05-02 2012-11-08 Sharp Laboratories Of America, Inc. Disabling transceivers while servicing emergency messages

Also Published As

Publication number Publication date
CN101938284B (zh) 2014-01-01
US20100330907A1 (en) 2010-12-30
CN101938284A (zh) 2011-01-05

Similar Documents

Publication Publication Date Title
US8543067B2 (en) Communication device and communication method employing the same
US10148341B2 (en) Independent band detection for network protection
EP3080926B1 (en) Wireless electronic device with switchable antenna system cross-reference to related application (s) and claim of priority
JP4628293B2 (ja) マルチバンド無線通信方法およびマルチバンド無線通信装置
US10659142B1 (en) Independent band detection for network protection
CN102170305A (zh) 天线特性控制***及方法
US10925115B2 (en) Signal booster with coaxial cable connections
US20130165057A1 (en) Rf transmission circuit and electronic device and method for saving power thereof
CN102833884A (zh) 双模移动通信终端
US20130163577A1 (en) Power amplifying circuit and wireless communication device
MXPA05002234A (es) Puenteo para amplificador de potencia en un semi-duplex ic.
US20050272457A1 (en) Handling transmissions via a radio link
JP2008118662A (ja) 中継局の切り替え可能通信機
US8320975B2 (en) Apparatus and method for improving sensitivity of dual-standby portable terminal
EP2750297A1 (en) Method and system for input signal conditioning for radio transceiver circuits
US8224267B2 (en) Radio frequency-based communication terminal having two exchangeable transmitting paths
KR101628359B1 (ko) Ｒｆ 통신장치 및 제어방법
CN215300623U (zh) 无线传输电路及射频设备
US20120034883A1 (en) Wireless transceiver
EP3577794A1 (en) Band-specific detection in a signal booster
KR20060095363A (ko) 이동통신단말기의 송신장치
TW201208266A (en) Wireless transceiver
KR20110012316A (ko) 알에프 신호 송신 장치

Legal Events

Date Code Title Description
AS Assignment

Owner name: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., C

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FENG, JIAN-YAN;REEL/FRAME:023855/0977

Effective date: 20100123

Owner name: CHI MEI COMMUNICATION SYSTEMS, INC., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FENG, JIAN-YAN;REEL/FRAME:023855/0977

Effective date: 20100123

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8